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1.
作者在开胸麻醉犬心脏上,观察冠脉内灌注N-单甲基左旋精氨酸(L-NMMA)5mg/kg,前后冠脉血流动力学、冠脉血流储备(以阻断冠脉15s再灌注所致的反应性充血血流峰值表示)以及冠脉对不同浓度乙酰胆硷(Ach)反应的变化,同时用放射免疫法(RIA)测定冠脉前降支(LAD)伴行静脉血中的内皮素-1(ET-1)含量.结果证明,L-NMMA灌注后心率下降,基础冠脉血流量(CBF)下降(χ±s,从27±6ml/min下降至20±8ml/min,P<0.05),冠脉储备下降(χ±s,从91±19ml/min下降至50±10ml/min,P<0.01),平均主动脉压升高,ET-1含量明显升高(χ±s,从6.5±1.0ng/L升至15.5±3.0ng/L,P<0.01),Ach引起的CBF增加减弱(P<0.01).实验结果提示,生理条件下犬冠脉一氧化氮(NO)形成对CBF,冠脉储备有重要调节作用,同时可抑制冠脉ET-1释放.  相似文献   

2.
测定了原发性肝癌77例(PHC组),肝硬化35例(DC组),消化系统其他恶性肿瘤患者33例(DSC组)及健康人100例(NC组)血清α-L-岩藻糖苷酶(AFU)活力。结果表明:PHC组AFU(669.6±191.5nmol·ml ̄(-1)·h ̄(-1))显著高于NC组(314.3±67.0nmol·ml ̄(-1)·h ̄(-1),P<0.01),DSC组(390.6±102.3nmol·ml ̄(-1)·h ̄(-1),P<0.01)和DC组(458.3±150.1nmol·ml ̄(-1)·h ̄(-1),P<0.05)。其诊断敏感性和特异性分别为71.4%和89.3%,与AFP联合检测时PHC组总的阳性检出率达88.2%。  相似文献   

3.
肾病综合征病人抗氧化功能的研究   总被引:2,自引:0,他引:2  
为研究肾病综合征(NS)时抗氧化功能状况,我们测定36例患者血超氧化物歧化酶(SOD)、丙二醛(MDA)及维生素E,以及尿SOD、MDA。结果表明:NS患者血总SOD、Cu-Zn-SOD及维生素E水平明显低于正常对照组(分别为76.22±27.48μU/L比104.20±18.80μU/L,P<0.001;20.40±22.63μU/L比62.99±15.60μU/L,P<0.001;6.68±3.52mg/L比16.38±1.05mg/L,P<0.001);尿SOD及MDA明显高于对照组(分别为:114.98±31.73μU/L比82.34±26.50μU/L,P<0.001;3.99±1.98μmol/L比2.64±0.78μmol/L,P<0.001).研究提示,NS时抗氧化功能减退,肾脏易遭受氧自由基损害。  相似文献   

4.
李龙芸  孙文萍 《北京医学》1998,20(3):137-139
应用小剂量(2μg/kg)粒细胞集落刺激因子(G-CSF)于18例肺癌患者化疗中,以观察预防发生中性粒细胞减少症的疗效。其中小细胞肺癌5例,非小细胞肺癌13例,随机分成G-CSF组及对照组各9例,化疗方案为CE(卡铂-VP16)。结果G-CSF组粒细胞绝对计数(ANC)<2.0×109/L,发生例数5例,持续天数为3.6±3.5天;对照组持续天数16.8±7.1天,P<0.05。ANC最低值至恢复正常(ANC>2.0×109/L)的天数G-CSF组及对照组分别为2.6±1.3天,8.9±5.3天(P<0.05)。G-CSF组化疗后的第20天ANC均已恢复正常,ANC为(9.7±6.8)×109/L故可在第22天顺利接受第二周期化疗。对照组ANC(1.66±0.8)×109/L(P<0.01)。由此可见,小剂量G-CSF能有效地防治肺癌化疗引起的粒细胞减少症  相似文献   

5.
RP-HPLC测定血浆中奥美拉唑及其相对生物利用度研究   总被引:1,自引:0,他引:1  
建立了RP-HPLC快速测定血浆中奥美拉唑的方法,应用该法测定了10名健康志愿受试者随机交叉单剂量口服奥美拉唑受试片和进口胶囊后的血药浓度,结果表明:两种制剂在人体内的药动学行为均符合一级吸收的开放一室模型,其达峰时间(tmax)分别为(2.60±0.94)h和(3.30±.82)h;峰浓度(Cmax)分别为(1171.0±553.2)ng/ml和(1214.9±590.2)ng/ml;生物半衰期(t1/2)分别为(0.95±0.44)h和(1.06±0.73)h;血浓经时曲线下面积(AUC)分别为(3691.8±2665.2)ng·h/ml和(3387.2±2408.7)ng·h/ml,配对t检验结果表明,差异均无显著性(P>0.05)。经双单侧t检验,结果显示两者在生物利用度方面属于等效,相对生物利用度为108.23%。  相似文献   

6.
阿昔洛韦片剂相对生物利用度研究   总被引:1,自引:0,他引:1  
采用HPLC法研究了10名男性健康志愿者欠交叉口服由广州南新制药有限公司生产的阿昔收片剂及市售对照药阿昔洛韦片剂后药物在体内的经时过程。结果两药的达峰时间分别为(1.864±0.377)h和(1.848±0.463)h,达峰浓度分别为(865.2±144.2)ng/ml和(879.2±95.7)ng/ml,AUC分别为(5978.9±1422.2)ng·h/ml和(5400±1154.0)ng·h  相似文献   

7.
本文采用放射免疫法检测20例临产前孕妇及她们的初生婴儿、血清铁蛋白(SF)及血清叶酸(FA)。结果发现婴儿的SF及FA均明显高于母亲,其母亲的SF及FA几何均值分别为13.8±4.9ng/ml及1.65±0.60ng/ml。婴儿的SF及FA几何均值分别为88.5±30.3ng/ml及3.97±1.23ng/ml。两组比较P〈0.01,差异有显著意义。但无论是SF或FA,母亲、婴儿间无线性关系。  相似文献   

8.
用黄连、黄柏、黄芩和金银花复方水煎剂治疗烧伤大鼠创面感染,测定血浆中白细胞介素6(IL-6)的含量和混和淋巴细胞培养上清液中的肿瘤坏死因子TNF诱生量。大鼠随机分成假烫组、烧伤创面感染对照组(烧感组)和烧伤创面感染十中药治疗组(中药组)。烧感组和中药组在伤后8、24和48h抽血查上述指标。结果示烧伤创面感染的大鼠自烧伤后24h起血浆IL-6均高于正常,烫伤后48h烧感组血浆IL-6显著高于中药组(P<0.01)。TNF的诱生量从伤后24h起,中药组显著高于烧感组,中药组伤后24和48hTNF的诱生量分别为4.2±0.9ng/ml和2.61±1ng/ml;烧感组分别为1.1±0.3ng/ml和0.9±0.3ng/ml(P<0.01)。由此说明抑制内源性致热因子IL-6和TNF的产生是中药清热解毒的重要机制。  相似文献   

9.
20只健康家兔随机分为对照组和卡托普利组,每组10只。采用Langendorf灌注兔心模型。对照组单纯用圣托马斯液作为心停跳液和保存液,卡托普利组则在圣托马斯液中加入卡托普利(80mg/L)。离体心脏(供心)于4℃下缺血停跳6h,再灌注30min。结果:卡托普利组缺血后心输出量、心肌肌酸磷酸激酶含量、超氧化物歧化酶活性、过氧化脂质含量及六酮前列腺素含量分别为(324±26)ml/min、(1835±78)U/g、(2323±67)U/L、(1056±137)nmol/g、(0.95±0.1)mg/L;对照组则分别为(216±19)ml/min、(971±88)U/g、(1601±73)U/L、(1876±330)nmol/g、(055±01)mg/L,2组相比均有显著差异(P<001)。提示:卡托普利可明显改善供心心功能,减轻缺血再灌注损伤,为供心的保存提供可能。  相似文献   

10.
本文测定了20例冠心病患者和19例正常人葡萄糖耐量(OGTT)时胰岛素和血糖水平。冠心病组OGTT的1、2、3h血清胰岛素为49.1±18.9mIU/L、46.3±16.4mIU/L39.6±15.9mIU/L胰岛素/血糖(mIU/mmol)比值分别为5.1±1.3、5.8±1.1、7.3±1.4,结果均明显高于正常对照组(P<0.01)。表明冠心病组病人存在高胰岛素血症和胰岛素抵抗(IR)。同时,冠心病组总胆固醇、甘油三酯分别为6.12±1.82mmol/L、2.44±1.06mmol/L,均显著高于对照组(P<0.01、P<0.05),提示胰岛素抵抗可能导致脂质代谢紊乱,进而引起冠心病。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

17.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

18.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

19.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

20.
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.  相似文献   

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